/**
 * Product onboarding (Today-first tour) — fast, minimal, Inter, green accent.
 */

#tc-product-ob {
  position: fixed;
  inset: 0;
  z-index: 2147481500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--tc-space-4, 1rem);
  box-sizing: border-box;
  background: rgba(8, 11, 18, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--font-sans, 'Inter', system-ui, sans-serif);
  animation: tc-pob-fade 0.35s var(--tc-ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

@keyframes tc-pob-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.tc-pob-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card, #151c24);
  border: 1px solid var(--border, rgba(148, 163, 184, 0.14));
  border-radius: var(--tc-radius-lg, 16px);
  padding: var(--tc-space-6, 1.5rem);
  box-shadow: var(--shadow-card, 0 24px 80px rgba(0, 0, 0, 0.45));
  color: var(--text, #f1f5f9);
}

.tc-pob-card h1 {
  margin: 0 0 var(--tc-space-2, 0.5rem);
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.tc-pob-card .tc-pob-lead {
  margin: 0 0 var(--tc-space-5, 1.25rem);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-muted, #94a3b8);
}

.tc-pob-steps {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent, #22c55e);
  margin-bottom: var(--tc-space-3, 0.75rem);
  letter-spacing: 0.04em;
}

.tc-pob-grid {
  display: grid;
  gap: var(--tc-space-3, 0.75rem);
}

.tc-pob-choice {
  display: flex;
  align-items: flex-start;
  gap: var(--tc-space-3, 0.75rem);
  padding: var(--tc-space-4, 1rem);
  border-radius: var(--tc-radius-sm, 12px);
  border: 1px solid var(--border, rgba(148, 163, 184, 0.12));
  background: var(--bg-elevated, #1a222d);
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.tc-pob-choice:hover {
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.tc-pob-choice[aria-pressed='true'] {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}

.tc-pob-choice strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.tc-pob-choice span {
  font-size: 0.8rem;
  color: var(--text-muted, #94a3b8);
}

.tc-pob-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted, #94a3b8);
  margin-bottom: var(--tc-space-2, 0.5rem);
}

.tc-pob-field input,
.tc-pob-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: var(--tc-space-3, 0.75rem) var(--tc-space-4, 1rem);
  border-radius: var(--tc-radius-sm, 12px);
  border: 1px solid var(--border, rgba(148, 163, 184, 0.14));
  background: rgba(0, 0, 0, 0.2);
  color: inherit;
  font: inherit;
  font-size: 0.9rem;
}

.tc-pob-field textarea {
  min-height: 5rem;
  resize: vertical;
}

.tc-pob-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tc-space-3, 0.75rem);
  justify-content: flex-end;
  margin-top: var(--tc-space-6, 1.5rem);
}

.tc-pob-btn {
  padding: var(--tc-space-3, 0.65rem) var(--tc-space-5, 1.25rem);
  border-radius: var(--tc-radius-sm, 12px);
  border: 1px solid var(--border, rgba(148, 163, 184, 0.2));
  background: rgba(255, 255, 255, 0.06);
  color: inherit;
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.2s ease;
}

.tc-pob-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.tc-pob-btn--primary {
  background: linear-gradient(165deg, #4ade80, var(--accent, #22c55e));
  border-color: transparent;
  color: #052e16;
}

.tc-pob-btn--primary:hover {
  filter: brightness(1.05);
}

.tc-pob-msg {
  min-height: 1.25em;
  font-size: 0.85rem;
  margin-top: var(--tc-space-3, 0.75rem);
  color: #f87171;
}

@media (prefers-reduced-motion: reduce) {
  #tc-product-ob {
    animation: none;
  }
}